<style lang="scss">
  @import "../../common/stylus/mixin";

  .back {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 44px;
    background: rgba(0, 0, 0, 0.5);
    z-index: 10;
    .icon-arrow_lift {
      display: block;
      padding: 10px;
      font-size: 20px;
      color: #fff;
    }
  }

  .food {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 40px;
    z-index: 30;
    width: 100%;
    background: #fff;
    transform: translate3d(0, 0, 0);
    &.move-enter-active, &.move-leave-active {
      transition: all 0.2s linear;
    }
    &.move-enter, &.move-leave-active {
      transform: translate3d(100%, 0, 0);
    }
    .food-content {
      position: relative;
      .image-header {
        position: relative;
        width: 100%;
        height: 0;
        padding-top: 100%;
        img {
          position: absolute;
          top: 0;
          left: 0;
          width: 100%;
          height: 100%;
        }
      }
      .content {
        padding: 18px;
        .title {
          line-height: 14px;
          margin-bottom: 8px;
          font-size: 14px;
          font-weight: 700;
          color: rgb(7, 17, 27);
        }
        .detail {
          margin-bottom: 18px;
          height: 10px;
          line-height: 10px;
          font-size: 0;
          .sell-count, .rating {
            font-size: 10px;
            color: rgb(143, 153, 159);
          }
          .sell-count {
            margin-right: 12px;
          }
          .rating {
          }
        }
        .price {
          font-weight: 700;
          line-height: 24px;
          .now {
            margin-right: 8px;
            font-size: 14px;
            color: rgb(240, 20, 20);
          }
          .old {
            text-decoration: line-through;
            font-size: 10px;
            color: rgb(147, 153, 159);
          }
        }
      }
      .cartcontrol-wrapper {
        position: absolute;
        right: 12px;
        bottom: 12px;
      }
      .buy {
        position: absolute;
        right: 18px;
        bottom: 18px;
        z-index: 10;
        height: 24px;
        line-height: 24px;
        padding: 0 12px;
        box-sizing: border-box;
        border-radius: 12px;
        font-size: 10px;
        color: #fff;
        background: rgb(0, 160, 220);
        opacity: 1;
        &.fade-enter-active, &.fade-leave-active {
          transition: all 0.2s;
        }
        &.fade-enter, &.fade-leave-active {
          opacity: 0;
          z-index: -1;
        }
      }
    }
    .info {
      padding: 18px;
      .title {
        line-height: 14px;
        margin-bottom: 6px;
        font-size: 14px;
        color: rgb(7, 17, 27);
      }
      .text {
        line-height: 24px;
        padding: 0 8px;
        font-size: 12px;
        color: rgb(77, 85, 93);
      }
    }
    .rating {
      padding-top: 18px;
      .title {
        line-height: 14px;
        margin-left: 18px;
        font-size: 14px;
        color: rgb(7, 17, 27);
      }
      .rating-wrapper {
        padding: 0 18px;
        .rating-item {
          position: relative;
          padding: 16px 0;
          @include border-1px(rgba(7, 17, 27, 0.2));
          .user {
            position: absolute;
            right: 0;
            top: 16px;
            line-height: 12px;
            font-size: 0;
            .name {
              display: inline-block;
              margin-right: 6px;
              vertical-align: top;
              font-size: 10px;
              color: rgb(147, 153, 159);
            }
            .avatar {
              border-radius: 50%;
            }
          }
          .time {
            margin-bottom: 6px;
            line-height: 12px;
            font-size: 10px;
            color: rgb(147, 153, 159);
          }
          .text {
            line-height: 16px;
            font-size: 12px;
            color: rgb(7, 17, 27);
            .icon-thumb_up, .icon-thumb_down {
              margin-right: 4px;
              line-height: 16px;
              font-size: 12px;
            }
            .icon-thumb_up {
              color: rgb(0, 160, 220);
            }
            .icon-thumb_down {
              color: rgb(147, 153, 159);
            }
          }
        }
        .no-rating {
          padding: 16px 0;
          font-size: 12px;
          color: rgb(147, 153, 159);
        }
      }
    }
  }
</style>
<template>
  <transition name="move">
    <div>
      <div ref="food" class="food" v-show="showFlag">
        <div class="content">
          <div class="food-content">
            <div class="image-header">
              <img :src="food.image">
            </div>
            <div class="content">
              <h1 class="title" v-text="food.name"></h1>
              <div class="detail">
                <span class="sell-count">月售{{food.sellCount}}份</span>
                <span class="rating">好评率{{food.rating}}%</span>
              </div>
              <div class="price">
                <span class="now" v-text="'￥'+food.price"></span><span class="old" v-show="food.oldPrice" v-text="'￥'+food.oldPrice"></span>
              </div>
            </div>
            <div class="cartcontrol-wrapper">
              <cartcontrol @add="addFood" :food="food"></cartcontrol>
            </div>
            <transition name="fade">
              <div @click.stop.prevent="addFirst" class="buy" v-show="!food.count || food.count === 0">加入购物车</div>
            </transition>
          </div>
          <split v-show="food.info"></split>
          <div class="info" v-show="food.info">
            <h1 class="title">商品信息</h1>
            <p class="text" v-text="food.info"></p>
          </div>
          <split></split>
          <div class="rating">
            <h1 class="title">商品评价</h1>
            <ratingselect @select="selectRating" @toggle="toggleContent" :select-type="selectType" :only-content="onlyContent" :desc="desc" :ratings="food.ratings"></ratingselect>
            <div class="rating-wrapper">
              <ul v-show="food.ratings && food.ratings.length">
                <li v-show="needShow(rating.rateType,rating.text)" v-for="(rating,index) in food.ratings" v-bind:key="index" class="rating-item border-1px">
                  <div class="user">
                    <span class="name">{{rating.username}}</span>
                    <img class="avatar" :src="rating.avatar" width="12" height="12">
                  </div>
                  <!--<div class="time" v-text="rating.rateTime | formatDate"></div>-->
                  <div class="time">{{rating.rateTime | formatDate}}</div>
                  <p class="text">
                    <span :class="{'icon-thumb_up':rating.rateType===0,'icon-thumb_down':rating.rateType===1}"></span>{{rating.text}}
                  </p>
                </li>
              </ul>
              <div class="no-rating" v-show="!food.ratings || !food.ratings.length">暂无评价</div>
            </div>
          </div>
          <div style="height: 20px;"></div>
        </div>
        <div class="back" @click="hide">
          <i class="icon-arrow_lift"></i>
        </div>
      </div>
    </div>
  </transition>
</template>

<script type="text/ecmascript-6">
  import BScroll from 'better-scroll';
  import Vue from 'vue';
  import {formatDate} from 'common/js/date';
  import cartcontrol from 'components/cartcontrol/cartcontrol'
  import ratingselect from 'components/ratingselect/ratingselect'
  import split from 'components/split/split'

  // const POSITIVE = 0
  // const NEGATIVE = 1
  const ALL = 2

  export default {
    name: 'food',
    props: {
      food: {
        type: Object
      }
    },
    data() {
      return {
        showFlag: false,
        selectType: ALL,
        onlyContent: true,
        desc: {
          all: '全部',
          positive: '满意',
          negative: '吐槽'
        }
      }
    },
    methods: {
      needShow(type, text) {
        if (this.onlyContent && !text) {
          return false
        }
        if (this.selectType === ALL) {
          return true
        } else {
          return type === this.selectType
        }
      },
      show() {
        this.showFlag = true;
        this.selectType = ALL
        this.onlyContent = true
        this.$nextTick(() => {
          if (!this.scroll) {
            this.scroll = new BScroll(this.$refs.food, {
              click: true
            })
          } else {
            this.scroll.refresh()
          }
        })
      },
      hide() {
        this.showFlag = false;
      },
      addFirst(event) {
        if (!event._constructed) {
          return;
        }
        this.$emit('add', event.target);
        Vue.set(this.food, 'count', 1)
      },
      addFood(target) {
        this.$emit('add', target);
      },
      selectRating(type) {
        this.selectType = type;
        this.$nextTick(() => {
          this.scroll.refresh();
        });
      },
      toggleContent() {
        this.onlyContent = !this.onlyContent;
        this.$nextTick(() => {
          this.scroll.refresh();
        });
      }
    },
    filters: {
      formatDate(time) {
        let date = new Date(time);
        return formatDate(date, 'yyyy-MM-dd hh:mm');
      }
    },
    components: {cartcontrol, ratingselect, split}
  }
</script>
